[TASK] Raise minimum required TYPO3 version to 6.0
[TASK] Get rid of 4.x preview class
[TASK] Get rid of remote Exception reporting
[TASK] Add class alias map
[TASK] Get rid of cloned convertFlexFormContentToArray method
[BUGFIX] Reference pasting problem
Merge pull request #325 from NamelessCoder/70prep

[TASK] 7.0 preparations, go big